An economic history of tropical Africa / 
selected and edited by Z. A. Konczacki and J. M. Konczacki 
 - London :  Frank Cass,  1977 
 - 2 v. :  maps ;  23 cm. 
<br/><br/> Includes index 
<br/><br/>Vol. 1. The pre-colonial period.--v. 2 .The colonial period 
<br/><br/><label>ISBN: </label>0714629197 :  PND 9.95 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Africa, Sub-Saharan--Economic conditions
<br/><br/><label>Dewey Class. No.: </label>330.967